The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 14, 2025

Filed:

Apr. 01, 2024
Applicant:

Liqui-box Corporation, Richmond, VA (US);

Inventors:

Nicholas Farkas, Ontario, CA;

Paul Georgelos, Naperville, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 65/40 (2006.01); B32B 7/03 (2019.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 33/00 (2006.01); B65D 75/32 (2006.01); B65D 75/58 (2006.01);
U.S. Cl.
CPC ...
B65D 65/40 (2013.01); B32B 7/03 (2019.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 33/00 (2013.01); B32B 2250/02 (2013.01); B32B 2250/24 (2013.01); B32B 2307/72 (2013.01); B32B 2311/24 (2013.01); B65D 75/322 (2013.01); B65D 75/5877 (2013.01); B65D 2565/385 (2013.01);
Abstract

The disclosure provides co-extruded, multi-layer films, including metallized barrier films and non-barrier films, and articles of manufacture that include the films, such as flexible bags and containers for flowable materials. The films and articles that include the films have good heat retention, and barrier properties, as well as good flex-crak resistance and toughness. The films and articles that include the films have a metallized barrier core layer of ethylene-vinyl alcohol (EVOH) copolymer wherein both the metal and EVOH are in amounts that achieve the heat retention, flex-crack resistance, toughness, and barrier properties, while allowing for the recycling of the films and articles of manufacture.


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